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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Triosephosphates are toxic to superoxide dismutase-deficient Escherichia coli.

Increase in the production of triosephosphates has been considered an important factor leading to diabetic complications. It might be expected that like the other short chain monosaccharides, triosephosphates autoxidize producing superoxide radical and alpha,beta-diketones. Since superoxide can also initiate the oxidation of short chain sugars, free radical chain reactions are possible. If such reactions occur in vivo, triosephosphates would be more deleterious to cells lacking superoxide dismutase (SOD) than to normal cells. Here we demonstrate that triosephosphates kill a SOD-deficient Escherichia coli mutant much more than the parental, SOD-proficient strain. The effect is oxygen-dependent and is partially suppressed by aminoguanidine. Increased production of superoxide and diketones appeared to be the cause of triosephosphates toxicity.[1]

References

  1. Triosephosphates are toxic to superoxide dismutase-deficient Escherichia coli. Benov, L., Beema, A.F., Sequeira, F. Biochim. Biophys. Acta (2003) [Pubmed]
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